Cincinnati Energy Guide: Solar, Batteries, Backup Power and EV

In short: Duke Energy Ohio serves Cincinnati and Mason. Homes buying its standard supply paid about 15¢ per kWh in 2024, and customers averaged about 5.4 hours of outages with major storms, 1.7 without (EIA). Hamilton County is rated “very high” for tornado losses (FEMA); Cincinnati ties Dayton for the most sun of the Ohio metros we cover.

This page covers backup power, solar, batteries and EV charging in Cincinnati and Mason. Ohio’s net metering rule, contractor licensing and state prices are in our Ohio energy guide.

Cincinnati at a glance

• Duke Energy Ohio: about 15.0¢ per kWh on average in 2024 for homes buying supply from Duke; 321 minutes of outages per customer with major events, 103 without, and about one interruption a year (EIA-861, 2024). About 58% of its home customers buy supply from another company.
• Rural edges: Butler Rural Electric Cooperative also serves parts of Hamilton County: about 18.2¢ per kWh, 227 outage minutes with major events and 61 without (EIA-861).
• Sun: about 4.0 kWh per square meter per day (NASA POWER, 2001 to 2020). Our rough estimate: about 1,160 kWh a year per kW of panels, about 10% more than Cleveland.
• Top hazards: Hamilton County is “very high” for tornadoes and “relatively high” for strong wind, ice storms, flooding, lightning, cold waves, heat waves and winter weather. Warren County, home to Mason, is “relatively high” for strong wind, ice storms, cold waves and winter weather (FEMA National Risk Index, December 2025).
• Public charging: 517 ports at 137 locations in Cincinnati and 40 in Mason (AFDC, October 3, 2026).

Your utility and what it means

Duke Energy Ohio owns the wires and restores outages. Under Ohio’s customer choice program you can buy the supply part of your bill from Duke or from a supplier certified by the Public Utilities Commission of Ohio (PUCO); compare offers against Duke’s standard offer on PUCO’s Energy Choice Ohio site. Many Duke customers already do.

For solar, Ohio’s rule applies: Duke must offer net metering, and monthly excess becomes a credit at only the energy part of the standard rate, carried forward to later bills (see the Ohio guide). If you buy supply from another company, ask it whether it offers its own net metering contract and how it credits exports, then check Duke Energy Ohio’s current net metering tariff and interconnection steps before you sign. We could not load Duke’s own program pages to confirm details or any battery or EV offers, so we list none here. In 2024, about 5,300 Duke Energy Ohio homes had net-metered solar (EIA).

Backup power in Cincinnati

Duke’s 2024 figures show how storms drive outage time here: about 103 minutes per customer on ordinary days, three times that once major events are counted. FEMA’s “very high” tornado rating for Hamilton County is the only one among the six Ohio metro counties we checked, and strong wind and ice storms rank high too. Those events bring down trees and lines across many streets at once, which is what makes restoration slow.

For outages of a few hours, a portable power station or a home battery keeps lights, internet, the fridge and a sump pump going. For multi-day outages after a big storm, a natural gas standby generator runs longest; a portable generator with a transfer switch is the lower-cost option. Compare them in backup power options and size them with the battery backup calculator and generator sizing tool.

Safety: the U.S. Consumer Product Safety Commission says to run a generator outdoors only, at least 20 feet from the house, exhaust away from doors, windows and vents, and never in a garage. Use battery-backed carbon monoxide alarms. A transfer switch or interlock needs a licensed electrician and a permit; see generator installation. During tornado warnings, shelter first; equipment can wait.

Solar in Cincinnati

By our rough estimate, a kW of panels in Cincinnati makes about 1,160 kWh a year on a flat surface, tied with Dayton for the most of the Ohio metros we cover; a south-facing, unshaded roof usually does better. A 6 kW system would make roughly 7,000 kWh. Used at home as it is made, that would be worth up to about $1,050 a year at Duke’s 2024 average of 15¢. Exports earn less than retail under Ohio’s rule, so systems sized to your own use pay back fastest. These are estimates, not promises.

Get a roof-specific estimate from the solar potential tool, test quotes in the solar savings calculator, and read solar installation and how net metering works.

Batteries in Cincinnati

A battery helps twice here: it stores daytime solar for the evening instead of exporting it for a lower credit, and it rides through storm outages without fuel or noise. For tornado-season outages that last days, pair it with solar or a generator, since a battery alone usually covers essentials for about a day. We found no confirmed Duke Energy Ohio or state battery incentive. See home battery installation and home battery cost.

EV charging in Cincinnati

Cincinnati has 517 public charging ports and Mason 40 (AFDC, October 3, 2026), but home charging is still the cheapest way to drive electric. At Duke’s 2024 average of 15¢ and about 30 kWh per 100 miles, that is roughly $4.50 per 100 miles by our estimate; a supplier’s price changes it. Ask Duke about any EV rate before you install. A Level 2 charger needs a licensed electrician and an electrical permit; see EV charger installation and the EV charging cost calculator.

Drive on another fuel? See every alternative fuel station in Cincinnati: hydrogen, propane, natural gas, E85 ethanol, biodiesel and renewable diesel.

Permits and inspections

• City of Cincinnati: the Department of Buildings and Inspections Permit Center handles permits and publishes a solar photovoltaic installations checklist. The city’s Office of Environment and Sustainability also has a solar zoning fact sheet.
• Mason: ask the City of Mason which building department reviews solar, generator and EV charger work.
• Utility approval: Duke must approve the connection before solar or a grid-tied battery is turned on.
• Electrical work and HOAs: use a licensed electrician, and get written HOA approval before you sign.

Cities we cover

• Cincinnati
• Mason

Get help

Tell us about your project and we will connect you with a licensed, independent installer who serves the Cincinnati area. It is free, there is no obligation, and only the installer you choose gets your details. Read how it works.

Cincinnati energy FAQ

Can I choose my electricity supplier in Cincinnati?

Yes. Duke Energy Ohio still delivers the power and handles outages, but you can buy the supply part from Duke’s standard offer or from a supplier certified by PUCO. About 58% of Duke’s home customers bought from another supplier in 2024 (EIA). Compare offers on Energy Choice Ohio.

How is extra solar power credited by Duke Energy Ohio?

Under Ohio’s net metering rule, monthly excess becomes a credit at the energy part of the standard rate, not the full retail price, and carries forward. A competitive supplier may offer different terms. Check Duke’s current tariff and your supplier’s contract before you size a system.

Does Cincinnati’s tornado risk change what backup I need?

It argues for planning beyond a few hours. FEMA rates Hamilton County “very high” for tornado losses, and Duke’s outage minutes tripled in 2024 once major events were counted. A generator, or a battery paired with solar, covers longer outages than a battery alone.

Do I need a permit for solar in Cincinnati?

Yes. The city’s Department of Buildings and Inspections Permit Center reviews solar projects and publishes a solar PV checklist listing what to submit, and the city has a solar zoning fact sheet. Mason residents should ask their city which office handles it.

Sources

Utilities, prices, outages and solar counts: U.S. Energy Information Administration, EIA-861 data for 2024. Ohio net metering: PUCO rule 4901:1-10-28. Supplier choice: FirstEnergy Ohio customer choice page and EIA delivery-only counts. City of Cincinnati permit pages, found October 3, 2026 (the city site did not load for us that day). Sun: NASA POWER, 2001 to 2020. Hazards: FEMA National Risk Index, December 2025. Charging: Alternative Fuels Data Center, October 3, 2026. Generator safety: CPSC.